Resources

Our resources – known as PARR++ and the Combined Predictive Model – help primary care trusts (PCTs) to identify patients who are at risk of, but who have not yet entered, a spiral of frequent admissions to hospital.

You can download both PARR++ and the Combined Predictive Model from this page.

PARR++

Please note that the current version of PARR++ is not compatible with HRG4 data. Further information about an updated version of PARR will be posted on this site soon. In the meantime, PCTs using PARR++ must ensure that their data is converted to HRG3.5 codes.

Read the Getting started guide

Get vital practical information about how to use the tool.

Download or request a CD of PARR++

You may download PARR++ from this website, but the file is very large (168MB) and so may take a long time to download (you should allow around 25 minutes on average). If you prefer, you may request the tool on CD.

Your questions on the tool answered

  • Our frequently asked questions cover some common queries about using PARR++.
    Download PARR++ FAQs (71 kb) [pdf]
  • Share knowledge and discuss all issues relating to risk prediction (including the specifics of PARR++ and the Combined Model) with others in the field by registering on the Risk Prediction Network here.
    Visit the Risk Prediction Network

Combined predictive model

The following downloadable documents are freely available from this website.

Combined Predictive Model Final Report

This document gives more information about the Combined Predictive Model and the results it produced in the development PCTs.

Download Combined Predictive Model Final Report and Technical Documentation

This document gives the information in the report as well as providing technical guidance on implementing the model in your PCT. Using the model locally requires expertise about data sources, a statistical programming application (eg, SAS or SQL) and some expertise in data management and programming. PCTs that need additional technical expertise in implementing the model may consider soliciting consulting help from health care analytics firms, including Health Dialog, or other companies. 

eMedia appendices

These contain the look-up files referenced in the technical documentation that are required to build the model. This is a large file and may take time to download. Please read the technical documentation first and download the eMedia appendices only if you are planning to implement the model within your PCT.

Also in this project

Logo for the PARR++ tool

Related events

Tools

You can download the PARR++ and Combined model software.

Download the tools

See also

Search our library database

Suggested related searches

PARR case-finding report

  • PARR case-finding report

    This report describes the development of the original PARR algorithms (2006). Some of the variables and coefficients have changed in the updated PARR++ tool. The user interface has also been updated.